1. Ecological and palaeoecological studies of endolith boring, molluscan grazing and echinoid feeding traces;Akpan,1981
2. Shell-boring algae on the Scottish continental shelf: identification, distribution, bathymetric zonation;Akpan;Trans. R. Soc. Edinburgh, Earth Sci.,1984
3. Limpet grazing on Cretaceous algalbored ammonites;Akpan;Palaeontology,1982
4. Micritization of carbonate particles: process of precipitation and dissolution in modern shallow-water sediments;Alexandersson;Bull. Geol. Inst. Univ. Uppsala, New Ser.,1972
5. Untersuchungen aus dem Oresund: 28 Phoronis ovalis Wright, eine für die skandinavische Fauna neue Phoronide aus dem Oresund;Brattstrom;Lunds Univ. Arsskr., N.F.,1943